Lake Ilsanjo Weather Forecast

    • 50
    • 75

    Mostly Sunny

    • 54
    • 77

    Mostly Sunny

    • 51
    • 78

    Mostly Sunny

    • 52
    • 69

    Mostly Cloudy

    • 55
    • 65

    Rain Likely

    • 51
    • 62

    Rain

Today 31 Oct North Bay Interior Valleys

Partly cloudy in the morning then becoming sunny. Areas of fog in the morning. Highs in the upper 60s to lower 80s. West Winds 5 to 10 Mph.

Tonight 31 Oct North Bay Interior Valleys

Mostly clear. Lows in the 40s to upper 50s. West Winds 5 to 10 Mph.

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  • Temperature Real-Time

Lake Ilsanjo Temperature Statistics

October Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (11.2 miles)

  • Lowest 12 October, 2025

    42.1 °F

  • Average October

    59.1 °F

  • Highest 7 October, 2025

    89.1 °F

Climate (2020–Present)

Santa Rosa, Santa Rosa Sonoma County Airport (11.2 miles)

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  • Average Low 2020–2025

    45.3 °F

  • Average 2020–2025

    57.8 °F

  • Average High 2020–2025

    72.6 °F
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